文中分析了利用GSM无线模块实现发送短消息的应用方案,该方案使用AT 指令在PDU

模式下发送短消息,同时详细介绍了短消息控制方法、编码方案及其各部分的程序实现方法,给出了

整个系统实现流程。-This paper analyzes the use of GSM wireless module for applications to send short messages, the program to use AT command in PDU mode, send a short message, and details of the short message control methods, coding schemes and various parts of the program methods, then the entire system implementation process.